Unfolding-apparatus-sheet-plastic, unfolding apparatus sheet plastic. findings – regression results of the apparatus are stable. findings – regression results of the apparatus are stable. when unfolding the track you will not hear any clicks and snaps, it is fixed due to its weight.. 425, plastic article or earthenware shaping or treating:. Vacuum forming plastic materials - pressure forming plastic sheets from professional plastics include the full-line of kydex abs-pvc alloy sheets, royalite fr abs sheets and more., bags, primarily for liquid or other flowable products, are formed from sheet plastics material to define a generally rectangular container closed at one end and with a filling and discharging arrangement at the other end. the bags are formed from an outer sheet 10 and an inner sheet 11, the outer sheet extending the full length of the bag whereas the inner sheet extends only part way along the ....

1. a method for vacuum holding of plastic sheet material, according to which a sheet material (13) is heated, hold and retained along at least one peripheral edge of a side face, by a vacuum holding device (16) having at least one suction slot (20) connectable to a vacuum source (17) in which the suction slot (20) opens out towards a front surface characterised by the steps of: providing sheet ..., us2953814a us672620a us67262057a us2953814a us 2953814 a us2953814 a us 2953814a us 672620 a us672620 a us 672620a us 67262057 a us67262057 a us 67262057a us 2953814 a us2953814 a us 2953814a authority us united states prior art keywords sheet molding forming plastic articles prior art date 1957-07-18 legal status (the legal status is an assumption and is not a legal conclusion..

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